- One 18.25-oz. box moist-style yellow cake mix
- One 12-oz. can diet orange soda
Preheat oven to 350 degrees.
Combine ingredients in a large bowl. Whisk thoroughly and transfer to a baking pan sprayed with nonstick spray; bake in the oven until a knife inserted into the center comes out clean.
(Refer to cake-mix box for pan size and approximate bake time.)